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HP MB04XL chip 045A20 FW LGC reprogramming

FJ
 FJ
(@brs)
Prominent Member Customer
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Topic starter Posted : 22/11/2023 4:36 am
FJ
 FJ
(@brs)
Prominent Member Customer

cells are inflated. firmware is LGC as unsealed success.

is it possible to reprogram the dump for new cells 3,7v, 2400mAh?

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Topic starter Posted : 22/11/2023 4:38 am
FJ
 FJ
(@brs)
Prominent Member Customer

can be edited by hex editor?

what tool is required to self edit/reprogram?

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Topic starter Posted : 22/11/2023 4:40 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator
Posted by: @brs

firmware is LGC as unsealed success

 It does not mean firmware is Lgc. Unseal plugin combines different firmwares. 

 Manufacture Name is 313-54-41, so encoded. 

 Post picture of battery label to check Pack Maker and cells marking text if you have access to it. 

 

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Posted : 22/11/2023 11:52 am
FJ
 FJ
(@brs)
Prominent Member Customer
Posted by: @djibattworkshop

Post picture of battery label to check Pack Maker

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Topic starter Posted : 22/11/2023 1:41 pm
FJ
 FJ
(@brs)
Prominent Member Customer
Posted by: @djibattworkshop

cells marking text if you have access to it.

can check after opening if reprogramming possible.

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Topic starter Posted : 22/11/2023 1:43 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 This battery is produced by Samsung SDI so cells most probably also made by Samsung. In this case chip should have SDI firmware. 

Posted by: @brs

can be edited by hex editor?

  only if you know eeprom layout 

Posted by: @brs

what tool is required to self edit/reprogram?

 Renesas Tools with SDI support 

 

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Posted : 22/11/2023 1:56 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

Paste eeprom to check whether Charge Voltage and Capacity could be found there. 

 

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Posted : 22/11/2023 2:11 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

Basing on battery label, full charge voltage is 17600 so 4400mV each cell. Neither of these values could be found in eeprom. Probably they located in other firmware area and protected by checksum. 

 

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Posted : 22/11/2023 4:06 pm
FJ
 FJ
(@brs)
Prominent Member Customer
Posted by: @brs

is it possible to reprogram the dump for new cells 3,7v, 2400mAh?

can @torture, @azzido help in this case?

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Topic starter Posted : 24/11/2023 3:32 pm
torture
(@torture)
Member Moderator

I can't adjust these values on SDI firmware because i'm not familiar with the layout.

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Posted : 24/11/2023 4:28 pm
Nicusor
(@azzido)
Member Admin

@brs 

I don't offer such a service to customize eeprom for other cells than the original. It is too much.

NLBA Laptop Battery Analyzer with Chip Reset & Repair Option

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Posted : 24/11/2023 5:11 pm
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